CN102829062A - Bolt locking and looseness-preventing device - Google Patents
Bolt locking and looseness-preventing device Download PDFInfo
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- CN102829062A CN102829062A CN2012103272009A CN201210327200A CN102829062A CN 102829062 A CN102829062 A CN 102829062A CN 2012103272009 A CN2012103272009 A CN 2012103272009A CN 201210327200 A CN201210327200 A CN 201210327200A CN 102829062 A CN102829062 A CN 102829062A
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- locking nut
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Abstract
The invention discloses a bolt locking and looseness-preventing device. One end part of a bolt (1) passes through an assembly part (2), and a locking nut (4) is sleeved at the end part of the bolt (1); an inner hole of the locking nut (4) is divided into a screw hole section (5) and a taper hole section (6); the screw hole section (5) is in screw thread fit with the bolt (1); a locking seat (3) is arranged between the locking nut (4) and the assembly part (2) and is integrally formed by a taper sleeve (8) and a disc seat (7); the taper sleeve (8) extends into the taper hole section (6) of the locking nut (4) and is fitted with the taper hole section (6) of the locking nut (4) through taper surfaces; a plurality of openings evenly distributed in the circumferential direction are arranged in the outer wall of the taper sleeve (8); and first elastic blocks (9) are formed between adjacent openings. According to the bolt locking and looseness-preventing device, screw threads are deformed through taper surface fit between the locking nut and the locking seat, so functions of locking and looseness prevention are realized; and the bolt locking and looseness-preventing device has the characteristics of high regulation precision, convenience in assembly and disassembly, simplicity in operation, and the like, and an assembly clearance problem can be solved.
Description
Technical field
The present invention relates to a kind of bolt locking locking device, the locking when being used for nut and being in place is anti-loosening.
Background technique
Existing bolt locking locking device is made up of bolt, slotted nut and cotter pin, on each regular hexagon limit of slotted nut, all has notch.When the slotted nut cover installs on the bolt and after rotation puts in place, the pin-and-hole of radially offering on two symmetrical notches that make nut and the bolt is aimed at, and inserts cotter pin, blocks slotted nut through cotter pin, i.e. stoppable, the compactedness that assurance is assembled.But; Owing to have only 6 notches on the slotted nut circumference; Be the angle of adjacent two locked positions of slotted nut 60 degree of being separated by, then the minimum value of the adjacent locked position of slotted nut is slotted nut rotation 60 when spending, slotted nut along bolt axis to synchronization-moving distance.Receive the influence of processing technology, the fit up gap after the assembly parts assembling is difficult to control, when the slotted nut rotation puts in place and eliminates the fit up gap; The notch and the pin-and-hole on the bolt that occur probably on the slotted nut can't contrapositions; And that slotted nut is further rotated is motionless, if the derotation one go on foot with a back notch to position locking, then can leaving gap between nut and assembly parts; Cause assembling firm inadequately, and finally cause assembling defective.
This shows that the deficiency of existing bolt locking device is: 1) degree of regulation is low; 2) stay the fit up gap easily, assembly parts are prone to unclamp; 3) application has significant limitation.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of bolt locking locking device that can effectively control the fit up gap.
Technological scheme of the present invention is following: a kind of bolt locking locking device; Comprise bolt (1), assembly parts (2), locking bed (3) and locking nut (4), the end of bolt (1) is passed from assembly parts (2), and at the end of bolt (1) suit locking nut (4); The endoporus of said locking nut (4) is divided into screw section (5) and taper hole section (6); Wherein screw section (5) and bolt (1) screw-thread fit are provided with locking bed (3) between said locking nut (4) and assembly parts (2), and this locking bed (3) is made up of tapered sleeve (8) and dish seat (7) one; On tapered sleeve (8) and dish seat (7), have central through bore (11); Locking bed (3) is through this central through bore (11) and bolt (1) screw-thread fit, and said tapered sleeve (8) stretches in the taper hole section (6) of locking nut (4), passes through cone match between the two; And on the outer wall of tapered sleeve (8), offer opening, and the both sides of this opening form the first bullet piece (9).
The present invention changes to an end with the endoporus of locking nut and becomes the screw section, and the other end becomes the taper hole section, and between locking nut and assembly parts, increases locking bed, and the tapered sleeve that forms on the locking bed is cooperated with the taper hole section of locking nut.Since in the tapered sleeve upper shed of locking bed and form the first bullet piece, when locking nut and locking bed are locked each other, the elastic force of a vertical conical surface of formation on both cooperation conical surfaces; Under the effect of this power, the first bullet piece will deform, and the first bullet piece draws in to the center; Drive down at the disjunctor of the first bullet piece, the central through bore of locking bed is near the also and then gathering of an end of bolt end face, opens slightly near an end of assembly parts; Make the screw thread on the central through bore deform synchronously; And form asymmetric the cooperation with screw thread on the bolt, and screw thread is stung tightly between locking bed and the bolt, and can't to form rotation loosening for locking bed like this; Promptly play the effect of spline, thereby realize the purpose that locking is locking.
Simultaneously, owing to be screw-thread fit between locking bed and locking nut and the bolt, promptly can be before locking; The locking bed rotation is put in place; Make compactly between locking bed and the assembly parts to cooperate, and then locking bed is tightly locked the position, prevent to become flexible through tightly revolving of locking nut to no gap.This shows that the present invention can realize accurate locking and positioning in assembly process, eliminated the unmanageable disadvantage in fit up gap that processing technology causes, and applicability is strong, accurately control the occasion of fit up gap at various needs and all can use.
On the outer wall of said tapered sleeve (8), offer a plurality ofly, form the first bullet piece (9) between two adjacent apertures by the equally distributed opening of circumference.The first bullet piece evenly distributes by circumference, and the synchronism that such first bullet piece compressive deformation draws in to the center is better.
Have opening on the inwall of said locking nut (4) taper hole section (6), the both sides of this opening form the second bullet piece (10).Offer opening through the taper hole section of locking nut and form the second bullet piece, then when locking nut is locked, under the effect of the conical surface; The second bullet piece on the locking nut outwards opens; Under the disjunctor of the second bullet piece drove, the screw section of locking nut was also and then outwards opened near an end of assembly parts, near the then little gathering of an end of bolt end face like this; Make the also distortion of run-off the straight synchronously of screw thread on the screw section of locking nut; And forming asymmetric the cooperation with screw thread on the bolt, screw thread is stung tightly between the screw section of locking nut and the bolt, can't produce rotation between locking nut and the bolt; Promptly and locking nut also obtains tight locking and changes, can strengthen the reliability of locking device.
Have a plurality ofly on the inwall of said locking nut (4) taper hole section (6), form the second bullet piece (10) between two adjacent apertures by the equally distributed opening of circumference.The second bullet piece evenly distributes by circumference, and the outside open synchronism of such second bullet piece compressive deformation is better.
The external frame of the screw section (5) of said locking nut (4) is a regular hexagon, and the external frame of the dish seat (7) of locking bed (3) also is a regular hexagon.Orthohexagonal external frame is that locking nut and locking bed provide condition through wrench operated, and does not need to do in addition instrument, and is promptly practical simply again.
As preferably, according to the definition of tapering, when the big more locking nut of tapering was done relative movement with respect to locking bed, axially resistance was big more under the situation of mobile phase same distance, and spanner is pulled effort more, and the coupling mechanism force that distortion produces is big more, otherwise then opposite.Therefore, the tapering of the tapered sleeve (8) of said locking bed (3) is 15 °～20 °.
The quantity of the said first bullet piece (9) is 12～20.The quantity of the first bullet piece is too much, and then the first bullet piece self-deformation is easy, dies down but the first bullet piece drives screw thread while deformation ability, and the screw thread distortion is little, i.e. the locking effect variation; When the quantity of the first bullet piece was very few, the first bullet piece deformation needed bigger external force, and operation is hard; And the first bullet piece can reach comparatively desirable locking effect between 12～20, and also laborsaving convenience operates.
Beneficial effect: the present invention is through adding locking bed between locking nut and assembly parts, and on the tapered sleeve of locking bed, establishes opening, through the cone match between locking nut and the locking bed; The distortion of generation screw thread, the function of realization locking, locking spline, simultaneously; Degree of regulation is high; Can solve the unmanageable problem in fit up gap that assembly technology causes, easy to loading and unloading, simple to operate.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the plan view of locking nut.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the rear view of Fig. 2.
Fig. 5 is the plan view of Fig. 4.
Fig. 6 is the plan view of locking bed.
Fig. 7 is the B-B sectional view of Fig. 5.
Fig. 8 is the rear view of Fig. 5.
Fig. 9 is the plan view of Fig. 8.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the present invention is made up of bolt 1, locking nut 4, locking bed 3 and assembly parts 2 etc., and the end of bolt 1 is passed from assembly parts 2, and in the end of bolt 1 suit locking nut 4.One end of said locking nut 4 endoporus is a screw section 5, and the other end is a taper hole section 6.Locking nut 4 is through screw section 5 and bolt 1 screw-thread fit, and the external frame of this screw section 5 is a regular hexagon, so that operate through spanner.The taper hole section 6 of locking nut 4 is near assembly parts 2, and the inwall of this taper hole section 6 is the inner small and outside big conical surface, and tapering is 15 °～20 °.On the inwall of taper hole section 6, have a plurality of openings vertically, these openings evenly distribute on circumference, form the second bullet piece 10 between two adjacent apertures.The number of the second bullet piece 10 is 12～20, and present embodiment is preferably 16.The number of taper hole section 6 upper sheds confirms according to actual needs, can be 1 or less than other number of 12, as long as can make second shell fragment 10 realize its functions.
Like Fig. 1, Fig. 6, Fig. 7, Fig. 8 and shown in Figure 9; Between locking nut 4 and assembly parts 2, be provided with locking bed 3; This locking bed 3 is made up of with tapered sleeve 8 dish seat 7, and the stub end of tapered sleeve 8 is connected as a single entity with an end face of dish seat 7, and another end face and the assembly parts 2 of dish seat 7 fit; And the external frame of dish seat 7 is a regular hexagon, so that operate through spanner.Tapered sleeve 8 and dish seat 7 axially on offer circular central through hole 11, the inwall of this central through bore 11 is processed with screw thread, locking bed 3 is set on the bolt 1 through central through bore 11, and with bolt 1 screw-thread fit.The little head end of said tapered sleeve 8 stretches in the taper hole section 6 of locking nut 4, and through cone match, the tapering of the male cone (strobilus masculinus) of tapered sleeve 8 is 15 °～20 ° between the two, and as optimization, the tapering of the male cone (strobilus masculinus) of tapered sleeve 8 is 15 °.On said tapered sleeve 8 outer walls, offer a plurality of openings from microcephaly's end to the direction of stub end, these openings evenly distribute on circumference, form the first bullet piece 9 between two adjacent apertures.The quantity of the first bullet piece 9 is 12～20, and present embodiment is preferably 16.The number of tapered sleeve 8 upper sheds confirms according to actual needs, can be 1 or less than other number of 12, as long as can make the first bullet piece 9 realize its functions.
Assembly relation of the present invention is following:
Pass the mounting hole of assembly parts 2 when the end of bolt 1 after, screw in locking bed 3 earlier from the end of bolt 1, and locking bed 3 rotations are put in place through spanner; The dish seat 7 of locking bed 3 is closely contacted with assembly parts 2, through spanner locking nut 4 is screwed in from the end of bolt 1 again, when the taper hole section 6 of locking nut 4 with after tapered sleeve 8 conical surfaces of locking bed 3 contact; Continue rotational lock nut 4; Make that the conical surface closely contacts between locking nut 4 and the locking bed 3, under the effect of the conical surface, each the second bullet piece 10 on the locking nut 4 outwards opens; Like this under the disjunctor of the second bullet piece 10 drives; The screw section 5 of locking nut 4 is also and then outwards opened near an end of assembly parts 2, near the then little gathering of an end of bolt 1 end face, makes that the screw thread on the screw section 5 of locking nut 4 also deforms synchronously; And forming asymmetric the cooperation with screw thread on the bolt 1, screw thread is stung tightly between the screw section 5 of locking nut 4 and the bolt 1.Meanwhile; The first bullet piece 9 on the locking bed 3 inwardly draws in, and under the disjunctor of the first bullet piece 9 drove, the central through bore 11 of locking bed 3 also and then drew near an end of bolt 1 end face like this; End near assembly parts 2 opens slightly; Make screw thread on the central through bore 11 deform synchronously and form asymmetric the cooperation that screw thread is stung tightly between locking bed 3 and the bolt 1, can realize locking nut 4 and the locking of locking bed 3 on bolt 1 with screw thread on the bolt 1.
Claims (7)
1. a bolt is locked locking device, and the end of bolt (1) is passed from assembly parts (2), and at the end of bolt (1) suit locking nut (4); It is characterized in that: the endoporus of said locking nut (4) is divided into screw section (5) and taper hole section (6); Wherein screw section (5) and bolt (1) screw-thread fit are provided with locking bed (3) between said locking nut (4) and assembly parts (2), and this locking bed (3) is made up of tapered sleeve (8) and dish seat (7) one; On tapered sleeve (8) and dish seat (7), have central through bore (11); Locking bed (3) is through this central through bore (11) and bolt (1) screw-thread fit, and said tapered sleeve (8) stretches in the taper hole section (6) of locking nut (4), passes through cone match between the two; And on the outer wall of tapered sleeve (8), offer opening, and the both sides of this opening form the first bullet piece (9).
2. bolt as claimed in claim 1 locking locking device is characterized in that: on the outer wall of said tapered sleeve (8), offer a plurality ofly by the equally distributed opening of circumference, form the first bullet piece (9) between two adjacent apertures.
3. according to claim 1 or claim 2 bolt locking locking device, it is characterized in that: have opening on the inwall of said locking nut (4) taper hole section (6), the both sides of this opening form the second bullet piece (10).
4. bolt as claimed in claim 3 locking locking device is characterized in that: have a plurality ofly by the equally distributed opening of circumference on the inwall of said locking nut (4) taper hole section (6), form the second bullet piece (10) between two adjacent apertures.
5. bolt locking locking device as claimed in claim 4, it is characterized in that: the external frame of the screw section (5) of said locking nut (4) is a regular hexagon, the external frame of the dish seat (7) of locking bed (3) also is a regular hexagon.
6. like claim 1 or 2 or 4 or 5 described bolt locking locking devices, it is characterized in that: the tapering of the tapered sleeve (8) of said locking bed (3) is 15 °～20 °.
7. bolt locking locking device as claimed in claim 2, it is characterized in that: the quantity of the said first bullet piece (9) is 12～20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103272009A CN102829062A (en) | 2012-09-07 | 2012-09-07 | Bolt locking and looseness-preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103272009A CN102829062A (en) | 2012-09-07 | 2012-09-07 | Bolt locking and looseness-preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102829062A true CN102829062A (en) | 2012-12-19 |
Family
ID=47332308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103272009A Pending CN102829062A (en) | 2012-09-07 | 2012-09-07 | Bolt locking and looseness-preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102829062A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139649A (en) * | 2018-10-26 | 2019-01-04 | 无锡星亿智能环保装备股份有限公司 | A kind of axis and shaft parts axial positioning structure |
| CN111173830A (en) * | 2020-02-28 | 2020-05-19 | 扬州工业职业技术学院 | Composite locknut |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW388465U (en) * | 1999-02-25 | 2000-04-21 | Wu Shuei Sheng | Fastening nut |
| CN2395077Y (en) * | 1998-04-24 | 2000-09-06 | 沈天仁 | Anti-loose nut |
| CN2692400Y (en) * | 2004-04-09 | 2005-04-13 | 江阴市第三铸造机械有限公司 | Shrinking type antiloose screwbolt |
| WO2005080807A1 (en) * | 2004-02-06 | 2005-09-01 | Fusao Yamada | Fastening body with loosening preventing ability |
| CN101265937A (en) * | 2008-05-07 | 2008-09-17 | 株洲市荣达铁路机电有限公司 | Self locking combination nut |
| KR20100091855A (en) * | 2009-02-11 | 2010-08-19 | 오달석 | Locking nut |
| CN201582282U (en) * | 2010-01-17 | 2010-09-15 | 马玮 | Connecting bolt with locking sleeve |
| CN102042295A (en) * | 2010-01-27 | 2011-05-04 | 湖北博世达科技发展有限公司 | Nut taper pressing and clasping safe self-locking check bolt |
| CN202851602U (en) * | 2012-09-07 | 2013-04-03 | 力帆实业(集团)股份有限公司 | Bolt locking device |
-
2012
- 2012-09-07 CN CN2012103272009A patent/CN102829062A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2395077Y (en) * | 1998-04-24 | 2000-09-06 | 沈天仁 | Anti-loose nut |
| TW388465U (en) * | 1999-02-25 | 2000-04-21 | Wu Shuei Sheng | Fastening nut |
| WO2005080807A1 (en) * | 2004-02-06 | 2005-09-01 | Fusao Yamada | Fastening body with loosening preventing ability |
| CN2692400Y (en) * | 2004-04-09 | 2005-04-13 | 江阴市第三铸造机械有限公司 | Shrinking type antiloose screwbolt |
| CN101265937A (en) * | 2008-05-07 | 2008-09-17 | 株洲市荣达铁路机电有限公司 | Self locking combination nut |
| KR20100091855A (en) * | 2009-02-11 | 2010-08-19 | 오달석 | Locking nut |
| CN201582282U (en) * | 2010-01-17 | 2010-09-15 | 马玮 | Connecting bolt with locking sleeve |
| CN102042295A (en) * | 2010-01-27 | 2011-05-04 | 湖北博世达科技发展有限公司 | Nut taper pressing and clasping safe self-locking check bolt |
| CN202851602U (en) * | 2012-09-07 | 2013-04-03 | 力帆实业(集团)股份有限公司 | Bolt locking device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139649A (en) * | 2018-10-26 | 2019-01-04 | 无锡星亿智能环保装备股份有限公司 | A kind of axis and shaft parts axial positioning structure |
| CN111173830A (en) * | 2020-02-28 | 2020-05-19 | 扬州工业职业技术学院 | Composite locknut |
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Application publication date: 20121219 |